Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Sabina Sabatini"'
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 379:1053-1066
We have previously described the results of a search for low surface brightness (LSB) objects in data drawn from an east–west strip of the Virgo cluster and have compared this to a large-area strip outside the cluster. In this paper, we compare the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::359c263f84c37e61ce3588a919db899c
https://doi.org/10.1111/j.1365-2966.2007.11973.x
https://doi.org/10.1111/j.1365-2966.2007.11973.x
Autor:
Jonathan Ivor Davies, S. Linder, Anthony Peter Whitworth, Dimitrios Stamatellos, S. Roberts, Sabina Sabatini, Maarten Baes, R. Evans
Publikováno v:
New Astronomy. 10:523-533
The Monte Carlo method is a powerful tool for performing radiative equilibrium calculations, even in complex geometries. The main drawback of the standard Monte Carlo radiative equilibrium methods is that they require iteration, which makes them nume
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::773038e99cd6731d34dce41884744dc8
https://doi.org/10.1016/j.newast.2005.03.005
https://doi.org/10.1016/j.newast.2005.03.005
Autor:
Michael John Disney, R. H. Lang, Christine Jordan, Sabina Sabatini, S. Roberts, Virginia A. Kilborn, Jonathan Ivor Davies, P. J. Boyce, Wim van Driel, Robert F. Minchin, D. A. Garcia
Publikováno v:
The Astrophysical Journal. 622:L21-L24
VIRGOHI21 is an HI source detected in the Virgo Cluster survey of Davies et al. (2004) which has a neutral hydrogen mass of 10^8 M_solar and a velocity width of Delta V_20 = 220 km/s. From the Tully-Fisher relation, a galaxy with this velocity width
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4f2facb2f4f6ee154c763a76e59bdb09
https://doi.org/10.1086/429538
https://doi.org/10.1086/429538
Publikováno v:
Publications of the Astronomical Society of Australia. 21:360-365
Low luminosity (dwarf) galaxies play a crucial role in our current theories of galaxy and large scale structure formation. In the hierarchical picture they are the building blocks from which other structures form. These theories in their basic form o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9246f6c6a41b11fc9fe7d2a407b83ade
https://doi.org/10.1071/as04046
https://doi.org/10.1071/as04046
Autor:
Jonathan Ivor Davies, Suzanne M. Linder, Rhodri Evans, Roland Gunesch, Sabina Sabatini, Rodney Smith, Maarten Baes, Sarah Roberts
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 342:1093-1101
Some Lyman continuum photons are likely to escape from most galaxies, and these can play an important role in ionizing gas around and between galaxies, including gas that gives rise to Lyman alpha absorption. Thus the gas surrounding galaxies and in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::934e42e7575697f44b02daa9b7f2a95b
https://doi.org/10.1046/j.1365-8711.2003.06625.x
https://doi.org/10.1046/j.1365-8711.2003.06625.x
Publikováno v:
Astrophysics and Space Science. 285:97-106
The widely varying dwarf galaxy counts in different environments provide a strong challenge to standard hierarchical clustering models. The luminosity function is not universal, but seems to be strongly dependent upon environment. In this paper we de
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5e92c7ceac27e26f0a874c3c99b3d262
https://doi.org/10.1023/a:1024609809391
https://doi.org/10.1023/a:1024609809391
Autor:
S. Roberts, Rhodri Evans, Jonathan Ivor Davies, Luke J. M. Davies, Rodney Smith, Suzanne M. Linder, Sabina Sabatini
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 336:155-158
It has been suggested that some high-velocity hydrogen clouds, rather than being associated with the Galaxy, may be dispersed throughout the Local Group. If true these hydrogen clouds may be the ‘debris’ left over from the formation of the Local
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5baad7882623709018f0dfa8655b0472
https://doi.org/10.1046/j.1365-8711.2002.05711.x
https://doi.org/10.1046/j.1365-8711.2002.05711.x
Autor:
Christine Jordan, S. Roberts, Robert F. Minchin, Chris Impey, Jonathan Ivor Davies, Wim van Driel, Sabina Sabatini, P. J. Boyce, Andrew R. Marble, D. A. Garcia, Michael John Disney, Marco Grossi, R. H. Lang
Many observations indicate that dark matter dominates the extra-galactic Universe, yet no totally dark structure of galactic proportions has ever been convincingly identified. Previously we have suggested that VIRGOHI 21, a 21-cm source we found in t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::091b833c2ffb406368bad289e8960f13
http://arxiv.org/abs/0706.1586
http://arxiv.org/abs/0706.1586
Autor:
Olga Cucciati, Jonathan Ivor Davies, Sabina Sabatini, Alessandro Boselli, A. Donati, Giuseppe Gavazzi, Stefano Zibetti
Publikováno v:
Astronomy and Astrophysics-A&A
Astronomy and Astrophysics-A&A, 2004, 430, pp.411. ⟨10.1051/0004-6361:20034571⟩
Astronomy and Astrophysics-A&A, EDP Sciences, 2004, 430, pp.411. ⟨10.1051/0004-6361:20034571⟩
Astronomy and Astrophysics-A&A, 2004, 430, pp.411. ⟨10.1051/0004-6361:20034571⟩
Astronomy and Astrophysics-A&A, EDP Sciences, 2004, 430, pp.411. ⟨10.1051/0004-6361:20034571⟩
We report on a complete CCD imaging survey of 226 elliptical galaxies in the North-East quadrant of the Virgo cluster, representative of the properties of giant and dwarf elliptical galaxies in this cluster. We fit their radial light profiles with th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7a0e7fc272068dbfc8254b06fdfcde44
http://hdl.handle.net/10281/22448
http://hdl.handle.net/10281/22448
Autor:
Jonathan Ivor Davies, S. Roberts, Rhodri Evans, Rodney Smith, Maarten Baes, Robert F. Minchin, Suzanne M. Linder, Sabina Sabatini
The HIDEEP survey (Minchin et al. 2003) was done in an attempt to find objects having low inferred neutral hydrogen column densities, yet they found a distribution which was strongly peaked at 10^20.65 cm^-2. In an attempt to understand this distribu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::38883403abec44ec3c0ab432d5e0ef59
http://arxiv.org/abs/astro-ph/0405477
http://arxiv.org/abs/astro-ph/0405477